Answers AA-F26 Physical ScienceSpeed and Velocity

Speed and Velocity Answers

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Mr. Smith is designing a race where velocity will be measured. Which course would allow velocity to accurately get a winner?

a 5 mile course from the center of town heading north to the outskirts of town

a 100 meter swim in a 50 meter pool

a 2 mile run around a 400 meter track

a 10 mile bike course that zigzags through the mountains and back again

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Veronica’s velocity was measured as 4.3 m/s. She displaced 20 meters in 4.7 seconds. Which piece of information is missing for the correct calculation of velocity?

the starting point

the direction

the end point

the time per meter

The graph indicates the running route for Tobias.Which best describes his run?

From time 0 to 6, he went fast and then slowed down.

From time 6 to 10, he was at his slowest.

From time 12 to 14, he went very slow.

From time 14 to 18, he went toward the starting point.

Jamal is 8 miles away from his house. He rides his bike home toward home at a speed of 12 mph..How far away from home is he after a half hour?

1 mile

2 miles

3 miles

4 miles

Which explains the information needed to calculate speed and velocity?

Both require the total distance, but velocity also requires time and displacement.

Both require time, but velocity requires displacement and speed requires distance.

Speed requires displacement, while velocity requires distance.

Speed does not require time, while velocity does require time.

Which is a valid velocity reading for an object?

45 m/s

45 m/s north

0 m/s south

0 m/s

The chart shows Daniela’s run through her race.

1.5 m/s

2 m/s

2.5 m/s

5 m/s

Which units are used to measure both velocity and speed? Select three options.

m/s

d/t

km/h

mph

Kiley went 5.7 km/h north and then went 5.8 km/h west. From start to finish, she went 8.1 km/h northwest.Which best describes her numbers?

5.7 km/h north and 5.8 km/h west are instantaneous speeds, while 8.1 km/h northwest is the average speed.

5.7 km/h north and 5.8 km/h west are average speeds, while 8.1 km/h northwest is the instantaneous speed.

5.7 km/h north and 5.8 km/h west are average velocities, while 8.1 km/h northwest is the instantaneous velocity.

5.7 km/h north and 5.8 km/h west are instantaneous velocities, while 8.1 km/h northwest is the average velocity.

The chart shows the movement of a ball after several seconds.

Column A should be “Time,” and Column B should be “Position.”

Column A should be “Position,” and Column B should be “Time.”

Column A should be “Velocity,” and Column B should be “Speed.”

Column A should be “Speed,” and Column B should be “Velocity.”

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Speed and Velocity Answers

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